I built one using a 1/4 horse motor like the one above. But I used a 5 gallon water bottle with a handle. But I fount it was way to fast and dented the mouth of some of my cases.
This is what I am using now.
http://www.harborfreight.com/1-1-4-q...xer-91907.html
There is a 20% coupon that can be used on top if the sale price.
Can't beat it $112.00
The 1/4 horse motor from my first one cost more.
Your link is broken. I believe you are referring to this:
http://w w w.harborfreight.com/1-1-4-quarter-cubic-ft-compact-cement-mixer-91907.html
Just fix the spaces in the "www".
As you can see, it is the compact cement mixer. That is some serious capacity!
Also, if you look around, you will find 25% off coupons for HF too, bringing the price down further. The big catch is that I don't think there are any HF stores in Canada. I live 5 km from the Washington border, but the nearest HF (a recent thing) is in Spokane, about 6 hours round-trip. That makes it a pretty expensive tumbler. Of course, your situation might be very different.
HF also sells actual tumblers and vibratory polishers.
I like nevanevan's home built machine. I imagine if you found a sturdy chemical shipping bottle it would also work well. They make these heavy wall high density polyethylene bottles specifically for shipping hazardous fine chemicals - they often have wide mouths, excellent lids, are of course completely fluid-tight, and are shockingly tough.
I know a fellow who made a kind of mill (for minerals) using PVC pipe as the tumbling container, capped at one end. It was set at a slight angle so the contents don't run out the open end (eg. the open end is tilted up). It rested on four small tires/wheels, two of which were attached by bicycle chain to an old motor. The bicycle sprockets (mounted to some old lumber) provided gearing. The rubber wheels (might have been go-cart or hand truck wheels) turned the pipe entirely by friction, while also supporting the pipe. I don't think this fellow spent a single dollar, as it was all junk. It worked! I imagine it could work to tumble a lot of cases too.
Best Regards, G